An alternative approach is suggested by Input/Output (I/O) analysis (see, Miller and Blair, 1985; Førsund, 1985). For example, Pedersen (1993) has used an I/O framework to analyse net exports of transboundary (‘acid rain’) pollution in Denmark vis-a-vis the rest of the world. Similarly, Young (1996) examines the relative pollution intensity of traded (export-oriented) sectors and non-traded sectors in the Brazilian economy. An analogous framework could be used to construct an ecological balance of payments that quantifies resource trade interdependencies between countries. It should be noted that this is not the only means of carrying out this analysis. A somewhat different approach is adopted by Bailey and Clarke (2000) using a computable general equilibrium framework to model and forecast sustainability prospects in the world economy taking into account resource trade between major trading blocs.
參考答案:其它可能的方式被输入/输出 (输入／输出) 分析建议 (见到, 厂主和布莱尔,1985; F?rsund,1985). 举例来说， Pedersen(1993) 已经用一个输入／输出结构在丹麦面对面的人世界的其它部分分析 transboundary('酸雨') 污染的净余输出品。 同样地, 年轻的 (1996) 调查巴西的经济的交易 (输出品-导向的) 的部门和非交易部门的比较污染强度。 一个类似的结构可能用来构造在国家之间定量资源贸易互赖的生态学的贸易支付差额。 它应该被注意这不是实行这一项分析的唯一方法。 略微不同的方式被使用一个可计算的一般平衡结构做模型而且预测在主要的贸易集团之间进入帐户资源贸易之内拿的全球的持续性视野经济的外墙和 Clarke(2000) 采用。
